Pippa Middleton took the plunge!
Kate Middleton's younger sister stepped out in London last night dressed to impress -- looking stunning in a revealing red dress at a charity boxing ball.
Middleton wasn't the only one with red on the brain though, as both former Spice Girl Geri Halliwell and Prince William's ex-girlfriend Jecca Craig both showed up in strikingly similar gowns.
Princess Eugenie and Princess Beatrice also showed up to the lavish affair -- but sadly left their fascinators at home. Prince Harry's on-again-off-again girlfriend Chelsy Davy was also in attendance.
Check out all the party pics above!
